Return-Path: Received: (qmail 9355 invoked from network); 16 May 2000 20:08:14 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by teachers.core.plus.net.uk with SMTP; 16 May 2000 20:08:14 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.02 #1) id 12rnVI-0002Yu-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 16 May 2000 20:59:44 +0100 Content-Transfer-Encoding: 8bit Received: from smtper.inrete.it ([212.110.32.184] helo=mailer.inrete.it) by post.thorcom.com with esmtp (Exim 3.02 #1) id 12rnVG-0002Yo-00 for rsgb_lf_group@blacksheep.org; Tue, 16 May 2000 20:59:42 +0100 X-Priority: 3 X-MSMail-Priority: Normal Received: from cel266 (ppp-20-72-145.libero.it [151.20.72.145]) by mailer.inrete.it (8.8.8/8.8.8) with SMTP id VAA04161 for ; Tue, 16 May 2000 21:59:11 +0200 Date: Tue, 16 May 2000 21:59:11 +0200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Message-ID: <4.1.20000516201903.01688de0@mailer.inrete.it> X-Sender: spin@mailer.inrete.it X-Mailer: QUALCOMM Windows Eudora Pro Versione 4.1 Data: Tue, 16 May 2000 20:29:07 +0100 To: rsgb_lf_group@blacksheep.org From: "M. Bruno" Subject: Re: LF: Spectran beta 3 - IK1ODO beacon running (2mW) In-reply-to: <3.0.1.16.20000516134323.2cd7b862@mail.cc.kuleuven.ac.be> Riferimenti: <39211D64.9A0307AA@usa.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: In 20.37 16/05/00 , Rik wrote: > >Question to Marco : what was your ERP last night (+/- 22 UT) ? >Would it be possible to decrease it with 3 to 6 dB, to allow to test >Spectran on a really weak signal. > It was at 10 mW. Now (tuesday evening, 19z) it is running at 2mW level (250 mA into about 32 Ohm antenna Z, -30 dB gain). It's difficult to regulate the power ... the final draws 2A at 1.6V of Vdd! I will let it running until you like with the same parameters: QRG 137.791, -792, -793 kHz (each minus 0,2 Hz on my counter) Speed 30 s dot, 10 s space Lower frq is "space", middle is "dot", higher is "dash". [I propose a QRP award for the best bit-per-sec-per-km-per-mW performance. Anyone willing to think the rules?] If anyone wants lower power, let me know ....attenuators are available ! 73 - Marco IK1ODO spin@inrete.it Rivalta, ITALY JN35SA (N 45 01' 25.6", E 7 31' 09.4")